One. They simply hold the bulb and wait for the world to revolve around them.
The current US presidential election
A: A hundred but they'll all be competing to be the one to change the bulb and bring light to the world.
Sorry, they can only change the floor essence.
Woah woah woah... I never said there was a lightbulb!
A hundred but they'll all be competing to be the one to change the bulb and bring light to the world.
A: It takes two. One to change the bulb and the other to kick the switch.
Soak it in gasoline, hold a match up to it, and "woof!"
Knight time
Four. One to change the bulb and three to make a t-shirt about it.
Two. One to hold the ladder and one to screw your mother - I mean light bulb!
Keep it waiting.
Four blondes waiting at a four way stop.
Just one. They hold it in place while the world revolves around them.
One. They stick the bulb in the socket and wait for the world to revolve around them!